Pilot Flame Characteristics - Empire Comfort Systems VFPC20in33N-1 Installation Instructions And Owner's Manual

INTERMITTANT PILOT
SENSOR
Correct Pilot Flame Pattern
SENSOR
Incorrect Pilot Flame Pattern
If pilot flame pattern is incorrect as shown in Figure 29, see
Troubleshooting.
Page 30

PILOT FLAME CHARACTERISTICS

IGNITOR
PILOT
Figure 28
IGNITOR
PILOT
Figure 29
CLEANING AND PILOT MAINTENANCE
Oxygen Depletion Sensor Pilot - Figures 30 and 31
When the pilot has a large yellow tip flame, clean the Oxygen
Depletion Sensor as follows:
1. Clean the ODS pilot by loosening nut B from the pilot tubing.
When this procedure is required, grasp nut A with an open end
wrench.
2. Blow air pressure through the holes indicated by the arrows.
This will blow out foreign materials such as dust, lint and spider
webs. Tighten nut B also by grasping nut A.
Millivolt Pilot
B
Intermittant Pilot
Never use needles, wires, or similar cylindrical objects to
clean the pilot to avoid damaging the calibrated ruby that
controls the gas flow.
Figure 30
A
Figure 31
WARNING
39236-1-0219